Coke-oven door.



J. A. MCCREARY. i

COKE OVEN DOGR. APPucfmoN flu-:D Dsc. 11, 1914.

Patented Feb. 8, 1916.

2 SHEETS-SEEN l.

a v @ai COKE OVEN DOOR.

a Menlo@ (s1/Vilma COKE-OVEN DOOR.

.ence to a novel door construction of special utility inconnection with the well known bee-hive or rectangular types of coke ovens.

A primary object of the invention is to provide a coke oven door combining many practical features, chief among which is the feeding of air into the furnace or oven through a plurality of shutter controlled air ports, which may be manually, operated to regulate the amount of air let in according to the progress of the coking operation.

Another object is to provide a door which is readily adjustable to secure a plurality of individually removable and replaceable refractory tile units in place. These units in their assembled relation not only interlock with the frame work of the door, but also interlock with each other, consequently insuring a doubly secure holding effect. This arrangement furthermore reinforces the entire door and renders the same compact and free from looseness, thereby facilitating its handling as a single unit when removed and replaced in the oven doorway by the usual well known carrier mechanism. In this latter connection, the invention also contemplates means which performs the dual function of a receiving eye for a handle or trolley device and an inspection opening. v

As a further object, the invention contemplates a novel and substantial frame construction which combines strength and rigidity to the best possible advantage in securing a comparatively light weight, refractory tile supporting structure which is capable of being tted into the oven doorway so that all of the metallicparts thereof are shielded and protected from the intense heat within the oven.

With the above and other objects in view which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction,

combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

Specication of Letters Patent.

Patenten reb. s, wie.

Application led December 11, 1914. .Serial No. 876,701.

' A preferred and practical embodiment of the invention is illustrated in the accompanying drawings, in which Figure l is a rear elevation of the door forming the subject of the present invention with the refractory tile units in place. Fig. 2 is a vertical cross section on the line 2.2 of Fig. l. Fig. 3 is a top plan view. Flg. 4 is a bottom plan view. Fig. 5 is a horizontal section on the line 5-5 of Fig. 1. Fig. 6 is an elevation of the tile units in spaced assembled relation. Fig. 7 is a plan view of the air regulating shutter.

Similar reference characters designate corresponding 'parts throughout the several figures of the drawings.

VIn carrying out the invention, it is proposed to utilize the inherent strength and stiffness of a metallic bar or girder of Z-shape cross section, as this particular type aside from its reinforcing effect, affords many advantages of construction which especially adapt it to the present use. Therefore, as will be seen by reference to the several figures of the drawings, the numeral l designates the main open frame member of Z-shape cross section which is bent to conform to the general outline or shape of an oven doorway, thereby providing an arched top or body portion 2 having the depending side legs 3. This type of frame member also provides an inwardly disposed tile engaging flange -1 and an outwardly disposed sealing flange 5 which fits against the edges of the oven doorway or opening when the door is in place, and not only seals the same but prevents the door from falling into thev oven.

Thetop 2 of the frame member l is provided with a series of longitudinally arranged openings or air ports 6, which when open serve to admit air t-o the interior of the furnace. These lair ports 6 are controlled by a single sliding shutter member 7 having a. plurality of shutter ports 8 adapted to register with the air ports 6 when it is de siredto admit air into the oven, while the web portions 9 between each of the ports 8 is adapted to close the ports 6 when the shutter is shifted. This sliding shutter 7 is held in position by means of a plurality of keeper brackets 10 secured to the main frame member, and for the purpose of sliding the same in the guideway formed by these brackets, one edge of the shutter is provided with an outstanding projection or handle 11. With further vreference to the top porclosed by a pivoted cover plate 13, and in addition to performing the function of an inspection opening also forms an eye for receiving the hook of the door carrier incohanism commonly used in connection with the handling of doors of this character. With reference to the possibility of inspect-ing the contents o f the oven through the inspection opening 12 when the door is ,in place on the oven, it might appear that this hole would be covered up by the edge of the doorway inasmuch as the entire flange 5 abuts against the same to completely seal the oven. However, it will be observed, as indicated by dotted lines in Fig. 1 that the curvature of the top 2 .of the door frame is less than the arch of the oven door, the latter being indicated by the heavy dotted line D -in Fig. 1. That is to say, the radius of the arc of the top 2 of the frame member 1 is greater than the radius of the arc of the arched portion of the door frame in the oven, thereby providing a space which convenientlyafords an unobstructed line of vision vfrom the exterior of the furnace to the interior thereof.

Toward the lower part of the frame 1, there is preferably arranged a fixed crosstie member 14 of angular cross-section, and having the ends of one of its members 15 secured as at 16 to the side legs 3 of the .main frame member 1 While the other me1nber thereof extends within the lines of the main frame to provide a supporting web 17. This cross-tie 14 in additlon to tying or holding the side legs 3 of the frame in alinement provides a fixed abutment'for coperating with the adjustable tile locking means hereinafter referred to. Beneath the said cross-tie member 1 4, there is arranged an adjustable bottom tile supporting bar designated in its entirety by the reference 18. This tile supporting bar 18 is preferably of angular cross section and lincludes a tile supporting web 19 which is slidable within the side legs 3 of the main frame member and preferably inclined as clearly shown in Fig. 3 of the drawings so as to insure an accurate t of the door in the oven doorway when the former is placed in the latter, thereby taking the place of the flange 5 at this point. The web portion 20 of the bar 18 which is o posite the web 19 carries at each end, atie p ate 21 having the slots 22 for receiving bolts 23 carrying the usual tightening nuts 24, which bolts are rigidly secured to the lower ends of the side legs 3. It w-ill thus be apparent that the supporting bar 18 yis slidably interlocked with the si e legs 3 of the main frame member, and can be heldin any desired ad'usted position by means of the nuts 24 bemg tightened up on their respective bolts 23. For the purpose of facilitating the adjustment of the bar 18 after the tiles are in place in the frame, there lis provided a plurality of adjustment rods or bolts 25, the lower ends of which are swiveled in the web 19 of the bar 18, and the upper threaded ends26 of which pass through suitable openings in the supporting web 17 of the cross tie member 14:. The said ends 26 of each adjustment bolt 25 is provided with an adjustment nut 27, so it will therefore be apparent that by turning the latter with a wrench or equivalent tool, the adjustment bolts or rods 25 can be lengthened or shortened as the case may require to raise or lower the tile supporting bar 18. In this connection, it `will be noted that this bar has a longitudinal movement in the frame with respect to the side legs 3 thereof, which longitudinal movement permits the clamping of the refractory tiles in place Within the frame.

The frame Work of the door herein disclosed further includes a separate horizontal key bar 28 arranged intermediate the top 2 and tile supporting bar 18, and having no fixed connection with the frame member 1. Therefore, this horizontal key-bar which is preferably of channeled formation and includes the inclined side walls 29 performs the function of a center-lock for the tile units, and at the same time holds them in proper alinement, as will hereinafter more fully appear. In other words, this shiftable horizontal key bar 28 interlocks with the common edges of the individual tile units 30 so that thelatter holds the former in position, though the key bar itself performs its function as a center-lock by engaging theV lnner faces of the tile engaging flange 4.- of the main frame member, as clearly shown in Fig. 1. Each of the tile units 30 is independently removable and replaceable, and may be placed in the frame in an upper and lower series, the adjacent edges of which are engaged and held in position in the frame by means of the key bar 28. While this arrangement is preferable, and is shown in the drawings to illustrate the invention, it will of course be understood that the size of the tiles may be reduced if necessary, and the key bar 28 duplicated to perform the same function that it does in the present arrangement. However, regardless of the number or size of the refractory tiles used in connection with the present door frame, they necessarily include certain common features. That is to say, each tile unit 30 is provided with a flange receiving groove 31 for receiving the tile locking fiange 4 of the main frame member to hold the edges of the tiles adjacent the frame in place while each of meeting "edges by means of a tongue and groove joint 32. Furthermore, each tile unit 30 is provided with a frame protecting flange 33, and a key bar receiving groove 34. In addition to these common features of the several tile units, those tiles forming the upper series, whose top edges are curved to correspond to the curvature of the top 2 of the frame, are provided with suitable cutaway portions or air admission openings 35, arranged directly beneath the air ports 6 of the frame, to permit the maximum volume of air to be drawn into the furnace.

With reference to the manner of assembling the door, it will be apparent from the foregoing description that the upper series of the tile units 30 are first arranged in position and slid to the upper part of the frame where they are held in place by being inter- `1ocked with the frame through the medium of the fiange 4 of the latter and their own grooves 3l. The horizontal key bar 28 is then put in position so that one inclined wall 29 thereof engages the inclined face of the groove 34 of the several tile units, thereby alining and holding the upper series of tiles and preventingthem from swinging out of the frame at the center. At this stage of the assembling, the lower series of tile units 30 are arranged in position, the adjustable tile supporting bar 18 being first lowered to permit the insertion of the lower ends vof this series of tiles, and then the said adjustable tile supporting bar 18 is drawn upwardly into the frame by means of the ad ustment bolts 25, thereby forcing the tile units of the lower series into engagement with the other wall 29 of the horizontal key bar 28 to' hold the upper edges of the lower section of tiles in alinement, and at the same time holding the said key bar in position in the frame.

It will of course be understood during the adjustment of the tile supporting bar 18 that the same has a free sliding engagement with the bolts 23 carried by the lower ends of the side legs 3, and when the said supporting bar is in its final adjusted position, the nuts 24 of these bolts are tightened up, thereby securely locking the supporting bar in place. It therefore appears that the bar 18 not only is supported and adjusted through the adjustment rods or bolts 25, but

is additionally held in place by the bolts 23- and 24 clamping the slotted tie plates to the flanges 5 of the main frame member 1.

It is thought that the many features and advantages of the present invention will be readily apparent from the foregoing description, and it will of course be understood that the inventionis not only designed for use in connection with coke ovens, but may be readily adapted to analogous furnace structures by making various changes in the size, proportion and minor details of construction, without departing from the spirit or sacrificing any of the advantages of the invention, or departing from the scope of the appended claims.

I claim:

l. A coke oven door including a metal frame construction having a top arch provided with air ports therein.

2. A coke oven door including a metal frame construction having a top arch provlded with air ports therein, and a tile filling for the frame also having a top arch with air openings beneath and communicating with those in the frame arch.

3. A coke oven door including an arched frame member of Z-shaped cross section presenting a flat web and inner and outer flanges, said frame member having air admission ports in the flat web of the arch thereof.

4.' Adoor of the class described including an open frame member having fixed tile engaging means, and other tile locking means adjustable in a plane parallel to the vertical 'with respect to thel side legs of the main frame member.

7 A door of the class described including a main frame member, tile units carried by said main frame member, a central tile locking element common to all of the tile units, and tile locking means adjustable within said main frame member to hold said' tiles and central tile locking element in place.

8. A door of the class described including an open frame member having tile engaging means, tile units carried by said main frame member, adjustable tile locking means, and shiftable tile locking means common to all of the tile units held in the main frame member by the tile engaging means thereof and said adjustable tile locking means.

9. A door of the class described including a main frame member, a plurality of tile units carried by said main frame member and interlocking therewith, a single supporting member arranged at the bottom of the main frame member, and means having a fixed support for adjusting said supporting member.

10. A door of the class described including a main frame member having a tile engaging flange and a sealing fiange, tile units arranged in the frame and interlocking with said tile engaging flange thereof, and adjustable means for holding the tile units in engagement with the tile engaging flanges of the frame.

11. A door of the class described including a main frame member, a plurality of tile units having an interlocking engagement with said main frame member and With each other, a supporting bar movable in said frame and having a slidable connection at each end therewith, and meansfor adjusting said supporting bar.

12. A coke. oven door including a main frame member, a plurality of tilil units having an interlocking engagement with said main frame member and with each other,

a supporting bar movable within said frame and having a slidable connection at each end therewith, a stationary cross tie member carried by said frame, and adjustment bolts connected with said stationary 'cross tie member and supporting bar.

13. A coke oven door including a substantially inverted U-shaped main frame member, tile units arranged within said'main frame member and having an interlocking engagement therewith, a horizontally arranged key-bar common to all of said tile units, and a single supporting bar adjustable in a plane parallel to the vertical axis of the door.

14. A coke oven door including a main frame member having a continuous tile engaging flange, tile units having grooves on their outer edges for receiving said flange, each of said tile units also having a tongue and groove joint connection at their meeting edges, and a single adjustable supporting bar for holding all of the tiles in the frame.

15. A coke oven door including a main frame member having a continuous tile engaging flange, tile units having grooves on their outer edges for receiving said flange, each of said tile units also having a tongue and groove joint connection at their meeting edges, and also having a key groove, a key bar arranged horizontally of the frame adapted to enter the key groove of each unfit' to hold the same in alinement, and a supporting bar adjustable Within the frame for holding the tile units and key bar in place.

16. A coke over door, including a main frame member, tile units carried by said main frame member and arranged in separate transverse series, a horizontally arranged key bar for engaging a common edge of the units of each series for holding the same in alinement, and a supporting bar adjustable Within the Vframe for holding the tile units and key bar in place.

17. A door of the class 'described including a main frame member having a tile engaging flange, a shiftable key bary arranged horizontally of the main frame member and abutting against the tile engaging flange thereof, and an adjustable supporting bar arranged at one side of the frame.

18. A door of the class described including a main frame member having a tile engaging flange, a key bar arranged horizontally of the main frame member and abutting against the tile engaging flange thereof, a cross-tie member secured to the frame, a tile supporting bar slidably interlocked with the frame, and means connected with the. cross-tie member and supporting bar for adjusting the latter.

19. A door of the class described having a tile engaging flange, a key bar arranged horizontally of the main frame member and abutting against the tile engaging flange thereo-f, a cross tie member secured to the frame, a tile supporting bar, slotted tie plates carried by each end of the said tile supporting bar and slidablyl engaging With fastening bolts carried by the frame, and adjustment bolts connected with the cross tie member and supporting bar for affecting the adjustment of the latter.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses. JAMES A. MCCREARY.

Witnesses:

Ross F. LYTLE, ERNEST ROBBINS. 

